The invention discloses a
system applying medium of a low
boiling point into a low and medium-temperature geothermal well for obtaining heat, which comprises an underground
heat exchanger, a steam collector, a steam utilization device, a compressor, a
storage tank for the medium of the low
boiling point and a medium pump, wherein the
liquid medium inlet of the underground
heat exchanger is connected with the outlet of the medium pump; the steam outlet of the underground
heat exchanger is connected with the inlet of the steam collector; the outlet of the steam collector is connected with the inlet of the steam utilization device; the outlet of the steam utilization device is connected with the gaseous medium inlet of the compressor; the outlet of the
liquid medium of the compressor is connected with the inlet of the
storage tank for the medium of the low
boiling point; and the outlet of the
storage tank for the medium of the low boiling point is connected with the inlet of the medium pump. In the
system, the heat of underground hot water is utilized to change the
liquid medium in the underground heat exchanger into high-temperature steam, and the high-temperature steam becomes the energy of various pieces of equipment. The
system has the advantages of simple process, low
energy consumption and no
pollution, and is a powerful supplement for the traditional energy.